I think one of the great things about being a freelancer is the ability to set your schedule however you'd like. I actually don't have a consistent schedule; what works best for me is to vary my plans depending on what I have going on that day. For one thing, I try to group any out-of-office commitments on one or two days so that I can have unbroken work time on the remaining days of the week.

I've also experienced this problem and tracked it down to a Helvetica/ Helvetica Neue conflict. I'd recommend uninstalling all Helvetica variants and then re-installing them one at a time to see what causes the issue.

This is my solution as well. I'm a night owl, but I don't want to be sending clients emails at 3am. With Boomerang, everything goes out at 9am while I'm still in bed and, when I wake up, I have responses.

I've used it before. It's a nice way to quickly create interactivity from your sketches (rather than taking the time to translate them to a design program). Really good for collaboration with folks who aren't as computer/design savvy.